| Kingdoms / Animalia / Craniata / Aves / Anseriformes / Anatidae / Anas / Species |
| < > Anas castanea - Chestnut teal (Click photographs/illustrations: full picture & further details) |
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Alternative Names (Synonyms) |
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| Red-breasted teal Chestnut-breasted teal Brown teal Australian brown teal Mountain teal Kastanienente (German) Sarcelle rousse (French) Sarcelle dAustralie (French) Cerceta castana (Spanish) Cerceta de pecho castaņo (Spanish) Cerceta castaņa (Spanish) Anas castanea castanea Nettion castanea |
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Names for newly-hatched |
Duckling, downy. |
Names for non-breeding males or other colour-phases |
Eclipse. |
Species Author |
Debra Bourne |
Major References |
B1, B3, B5, B8, B19, B25, B26. Aviculture references: |
Other References |
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TAXA Group (where information has been collated for an entire group on a modular basis) |
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Parent Group |
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Specific Needs Group referenced in Management Techniques |
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Aviculture Information |
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Notes |
General Information:
(B7, B29, B30, B40, B94, B128.w1, D1) Species-specific information:
(B29, B30, B31, B40, B94, B97, B108, B128.w2, B139). Aviornis UK Ringing Scheme recommended average ring size: K 10.0mm (D8). |
Management Techniques |
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External Appearance (Morphology)
Measurement & Weight |
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| Length | 16 inches, 40cm (B3); 35-46cm (B1). | |
| Adult weight | General | 600-700g (B1). |
| Male | 340-708g average 595g (B3); mean 1.3 lbs. (B8). | |
| Female | 368-737g average 539g (B3); mean 1.3 lbs. (B8). | |
| Newly-hatched weight | -- | |
| Growth rate | -- | |
| Adult | Bill | Male | Dark blue-grey (B3, B5, B8, B25, B26). |
| Variations (If present) | -- | ||
| Eyes (Iris) | Male | Red (B3, B5, B8, B25, B26) | |
| Variations(If present) | Duller red (B3, B25). | ||
| Juvenile | Bill | Dark blue-grey (B3, B25). | |
| Eyes (Iris) | Red (B25). | ||
| Adult | Male | Greenish-grey (B3, B25, B26). |
| Variations (If present) | -- | |
| Juvenile | Greenish-grey (B3, B25). | |
| Adult | Male | Head and neck glossy green-black, breast, abdomen and flanks deep chestnut with dark brown spots particularly on flanks, tail, tail-coverts and rump blackish with white sides to ventral area behind flanks. Upperparts dark brown with reddish feather edges. Wings dark brown, greater coverts wide white tips, secondaries green-glossed black, narrowly white tipped (B3, B5, B8, B25, B26). |
| Variations (If present) | Female:- face
fawn with black streaking, throat pale buff, crown
dark brown.: underparts paler feathers with dark brown centres, upperparts
dark brown feathers with buffish feather edges. Wing similar to male (B3, B25, B26). Eclipse:- Duller, with brownish feathering, sometimes very similar to female but still brighter (B3, B8, B25). |
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| Juvenile | Similar to female (B3, B5, B25, B26). | |
Newly-hatched Characteristics |
| General: Upperparts
blackish brown with whitish markings; underparts whitish buff, face fulvous
with dark eyeline and second line below (B1, B5). Bill: Grey (B5). Feet: Grey (B5). |
Reproductive Season |
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| Time of year | Starts June to November, peaks August (B1). Peak October (B3, B26). |
| No. of Clutches | Often two and sometimes three (B1, B3, B25). |
Nest placement and structure |
| In tree hollows, on ground in tall grass or bushes near water, sometimes in rock crevices, also uses nest-boxes where provided; down-lined (B1, B3, B5, B8, B25, B26). |
Egg clutches |
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| No. of Eggs | Average | 7-10 (B1). |
| Range | 8-12 (B8); 5-17 (B1). | |
| Egg Description | Rich light cream (B3, B5, B8, B26); size: 51x37mm; weight: 40g (B3). | |
| 23-28 days, mean 26 days (B8); 23-29 days (B1); 28 days (B3, B26). |
| Synchronous. |
| 56 days (B1, B8). |
Sexual Maturity |
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| Males | One year old (B1, B3). |
| Females | One year old (B1, B3). |
Feeding Behaviour |
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| Adults | Dabble and mud-filter in very shallow water (B1, B3, B8, B26). |
| Newly-hatched | -- |
Parental Behaviour |
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| Nest-building | Solitary or in colonies (B1). |
| Incubation | By female (B3). |
| Newly-hatched | Male frequently remains with brood and helps female to tend (B3, B5, B25, B26). |
| Juveniles | -- |
Social Behaviour |
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| Intra-specific | Found as pairs or in small groups; sometimes larger flocks of several hundred birds (B25, B26). |
| Inter-specific | Often in mixed flocks with Anas gibberifrons - grey teal (B1, B26); sometimes feeds in association with Australian pelicans (B25). |
Sexual Behaviour |
| Pair forming begins March, continues through winter (B26). Pair bonds may be extended, even permanent (B8). |
Predation in Wild |
| Foxes, snakes, blue-tongued skinks, little ravens, swamp harriers, whistling kites, goshawks, purple swamphens, Biziura lobata - Musk ducks: take eggs and ducklings; harriers and peregrine falcons take adults (B8, B26). |
| Forage on rising tide on mudflats (B8). | |
| Circadian | -- |
| Probably small aquatic invertebrates, seeds and vegetative parts aquatic and shoreline vegetation, sedges, grasses (B1, B26). |
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Distribution and Movement (Migration etc.) |
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| Normal | Coastal western, southern and eastern Australia, locally further inland, and Bass Strait Islands, Kangaroo Island, Tasmania (B1, B19). Generally sedentary, small-scale dispersion inland and along coasts, but vagrants throughout Australia and to New Guinea (B1). |
| Occasional and Accidental | -- |
| Introduced | -- |
| Swamps, marshes, estuaries, coastal lagoons; sometimes inland waters (B1, B3, B8, B19, B25, B26). |
Intraspecific variation |
| -- |
Conservation Status |
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| Wild Population - (Importance) |
Not globally threatened; widely scattered and locally common, although declined in 20th century, have increased where nest boxes provided (B1, B8). |
| CITES listing | -- |
| Red-data book listing | -- |
| Threats | Loss of wetlands, hunting (B1). |
Captive Populations |
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